#243388#243388

#243388 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.142 H 270.1°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#243388
RGB	rgb(36, 51, 136)
HSL	hsl(231, 58%, 34%)
HSV	hsv(231, 74%, 53%)
CMYK	cmyk(73.5%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(25.32, 24.82, -49.28)
CIE-LCH	lch(25.32, 55.18, 296.74°)
OKLab	oklab(36.59% 0.0002 -0.1422)
OKLCH	oklch(36.59% 0.142 270.1)
XYZ	xyz(6.3538, 4.5196, 23.8253)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243388 #887924

analogous

#246588 #243388 #472488

triadic

#243388 #882433 #338824

tetradic

#243388 #882465 #887924 #248847

square

#243388 #882465 #887924 #248847

split-complementary

#243388 #884724 #658824

monochromatic

#0A0F27 #172158 #243388 #3145B8 #5567D2

Accessibility & contrast

On white

11.03

#243388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#243388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243388

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243388	#FFFFFF	#000000	##FFFFFF
##243388	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418B

Deuteranopia (green-blind)

#003886

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243388;
/* rgb */ color: rgb(36, 51, 136);
/* oklch */ color: oklch(36.6% 0.142 270.1);

Tailwind

colors: {
  custom: {
    50: '#6e6aab',
    500: '#243388',
    950: '#000000',
  },
}

SCSS

$custom: #243388;
$custom-light: #6e6aab;
$custom-dark: #000000;

JSON

{
  "hex": "#243388",
  "rgb": {
    "r": 36,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 231,
    "s": 58.14,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36589,
    "c": 0.14224,
    "h": 270.1
  },
  "luminance": 0.0452
}

Semantic roles & 50–950 ramp

primary

#243388

secondary

#B6A752

accent

#CA46E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243388

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →